One problem related to power assist brake hoses, lines/piping, and fittings has been reported for the 1999 Buick Century. The most recently reported issues are listed below.
The contact owns a 1999 Buick Century. While driving 15 mph, the contact experienced brake loss when he depressed the brake pedal. He applied the brakes a second time and the vehicle was able to stop. The vehicle was taken to the dealer and they stated that the brake lines were corroded and losing fluid. The current mileage was 53,809 and failure mileage was 53,500.